Datasheet

TPS65950
SWCS032E–OCTOBER 2008–REVISED JANUARY 2011 www.ti.com
Table 15-1. TPS65950 External Components (continued)
Function Component Reference Value Note Link
Capacitor C
PR.O
50 pF
Capacitor C
PR
1 μF
Resistor R
PR
>15 kΩ
External class-D predriver
Figure 6-12
right
Resistor R
PR.M
>15 kΩ
Resistor R
PR.O
10 kΩ
Capacitor C
PR.M
1 μF
Ferrite bead L
V.M
BLM18BD221S1N
Ferrite bead L
V.P
BLM18BD221S1N
Vibrator H-bridge Capacitor C
V.V
1 μF Figure 6-13
Capacitor C
V.M
1 nF
Capacitor C
V.P
1 nF
Capacitor C
MM.M
100 nF
Capacitor C
MM.P
100 nF
Capacitor C
MM.O
47 pF
Main microphone
Figure 6-20
Resistor R
MM.O
~500 Ω
(pseudodifferential mode)
Resistor R
MM.MP
~1.7 kΩ
If greater than 200 pF, a serial
Capacitor C
MM.B
0 to 200 pF
resistor is required for bias stability.
Capacitor C
MS.M
100 nF
Capacitor C
MS.P
100 nF
Capacitor C
MS.O
47 pF
Submicrophone
Figure 6-20
Resistor R
MS.O
~500 Ω
(pseudodifferential mode)
Resistor R
MS.MP
~1.7 kΩ
If greater than 200 pF, a serial
Capacitor C
MS.B
0 to 200 pF
resistor is required for bias stability.
Capacitor C
MM.M
100 nF
Capacitor C
MM.P
100 nF
Capacitor C
MM.PM
47 pF
Capacitor C
MM.O
47 pF
Main microphone Capacitor C
MM.GM
47 pF
Figure 6-21
(differential mode)
Capacitor C
MM.GP
47 pF
Resistor R
MM.BP
1 kΩ
Resistor R
MM.GM
1 kΩ
If greater than 200 pF, a serial
Capacitor C
MM.B
0 to 200 pF
resistor is required for bias stability.
Capacitor C
MS.M
100 nF
Capacitor C
MS.P
100 nF
Capacitor C
MS.PM
47 pF
Capacitor C
MS.O
47 pF
Submicrophone (differential Capacitor C
MS.GM
47 pF
Figure 6-21
mode)
Capacitor C
MS.GP
47 pF
Resistor R
MS.BP
1 kΩ
Resistor R
MS.GM
1 kΩ
If greater than 200 pF, a serial
Capacitor C
MS.B
0 to 200 pF
resistor is required for bias stability.
Range: 0.3 to 3.3 μF
VMIC1 Capacitor C
VMIC1.OUT
1 μF ESR minimum = 20 mΩ
ESR maximum = 600 mΩ
158 External Components Copyright © 2008–2011, Texas Instruments Incorporated
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